That not a perfection Loop, its a Rapala Knot. I used to think it was a perfection loop too. If you want to see the difference they have both here." animatedknots.com " And this is the best way to actually tie it in real life in my opinion.

Thank's But the only Knot i really use these days is the Allbright Knot now that we use Braided lines the need for Doubles ect has gone due to the strength of the new fishing lines My experience has shown the simpler you make things the better as the Knots are actually weak points in your lines so the less you use the less that can go wrong doubles and leaders were mainly used in big game fishing to help against abrasion from the fish during the fight and to help at the boat by giving a bit more control to the fish but the new technology in lines ect has made IMHO a lot of these Knot's redundant but people still use them Thank's for your comments ... Jason